Matches in SemOpenAlex for { <https://semopenalex.org/work/W4200250132> ?p ?o ?g. }
- W4200250132 endingPage "133370" @default.
- W4200250132 startingPage "133370" @default.
- W4200250132 abstract "This study developed a layered double hydroxides (Mn/Mg/Fe-LDH) material through a simple co-precipitation method. The Mn/Mg/Fe-LDH oxidized arsenite [As(III)] ions into arsenate [As(V)] anions. The As(III) and oxidized As(V) were then adsorbed onto Mn/Mg/Fe-LDH. The adsorption process of arseniate [As(V)] oxyanions by Mn/Mg/Fe-LDH was simultaneously conducted for comparison. Characterization results indicated that (i) the best Mg/Mn/Fe molar ratio was 1/1/1, (ii) Mn/Mg/Fe-LDH structure was similar to that of hydrotalcite, (iii) Mn/Mg/Fe-LDH possessed a positively charged surface (pHIEP of 10.15) and low Brunauer-Emmett-Teller surface area (SBET = 75.2 m2/g), and (iv) Fe2+/Fe3+ and Mn2+/Mn3+/Mn4+ coexisted in Mn/Mg/Fe-LDH. The As(III) adsorption process by Mn/Mg/Fe-LDH was similar to that of As(V) under different experimental conditions (initial solutions pH, coexisting foreign anions, contact times, initial As concentrations, temperatures, and desorbing agents). The Langmuir maximum adsorption capacity of Mn/Mg/Fe-LDH to As(III) (56.1 mg/g) was higher than that of As(V) (32.2 mg/g) at pH 7.0 and 25 °C. X-ray photoelectron spectroscopy was applied to identify the oxidation states of As in laden Mn/Mg/Fe-LDH. The key removal mechanism of As(III) by Mn/Mg/Fe-LDH was oxidation-coupled adsorption, and that of As(V) was reduction-coupled adsorption. The As(V) mechanism adsorption mainly involved: (1) the inner-sphere and outer-sphere complexation with OH groups of Mn/Mg/Fe-LDH and (2) anion exchange with host anions (NO3-) in its interlayer. The primary mechanism adsorption of As(III) was the inner-sphere complexation. The redox reactions made Mn/Mg/Fe-LDH lose its original layer structure after adsorbing As(V) or As(III). The adsorption process was highly irreversible. Mn/Mg/Fe-LDH can decontaminate As from real groundwater samples from 45-92 ppb to 0.35-7.9 ppb (using 1.0 g/L). Therefore, Mn/Mg/Fe-LDH has great potential as a material for removing As." @default.
- W4200250132 created "2021-12-31" @default.
- W4200250132 creator A5002406507 @default.
- W4200250132 creator A5004952269 @default.
- W4200250132 creator A5009583954 @default.
- W4200250132 creator A5025207884 @default.
- W4200250132 creator A5043437925 @default.
- W4200250132 creator A5050309497 @default.
- W4200250132 creator A5061162677 @default.
- W4200250132 creator A5062430438 @default.
- W4200250132 creator A5078847967 @default.
- W4200250132 date "2022-05-01" @default.
- W4200250132 modified "2023-10-03" @default.
- W4200250132 title "Single-step removal of arsenite ions from water through oxidation-coupled adsorption using Mn/Mg/Fe layered double hydroxide as catalyst and adsorbent" @default.
- W4200250132 cites W1973649021 @default.
- W4200250132 cites W1976085159 @default.
- W4200250132 cites W1980165467 @default.
- W4200250132 cites W1981085934 @default.
- W4200250132 cites W1983337612 @default.
- W4200250132 cites W1986197655 @default.
- W4200250132 cites W1994719969 @default.
- W4200250132 cites W1999464280 @default.
- W4200250132 cites W2018441436 @default.
- W4200250132 cites W2023763723 @default.
- W4200250132 cites W2036804889 @default.
- W4200250132 cites W2052373233 @default.
- W4200250132 cites W2069931631 @default.
- W4200250132 cites W2072344106 @default.
- W4200250132 cites W2072934080 @default.
- W4200250132 cites W2078032877 @default.
- W4200250132 cites W2081427631 @default.
- W4200250132 cites W2084786716 @default.
- W4200250132 cites W2088081423 @default.
- W4200250132 cites W2090349830 @default.
- W4200250132 cites W2093685176 @default.
- W4200250132 cites W2094382068 @default.
- W4200250132 cites W2113547964 @default.
- W4200250132 cites W2115676556 @default.
- W4200250132 cites W2119153777 @default.
- W4200250132 cites W2149602337 @default.
- W4200250132 cites W2161292285 @default.
- W4200250132 cites W2170398267 @default.
- W4200250132 cites W2276106395 @default.
- W4200250132 cites W2294061964 @default.
- W4200250132 cites W2318418992 @default.
- W4200250132 cites W2326152317 @default.
- W4200250132 cites W2552648674 @default.
- W4200250132 cites W2675341037 @default.
- W4200250132 cites W2727442671 @default.
- W4200250132 cites W2769457446 @default.
- W4200250132 cites W2773051821 @default.
- W4200250132 cites W2789779391 @default.
- W4200250132 cites W2808231736 @default.
- W4200250132 cites W2808752005 @default.
- W4200250132 cites W2887445416 @default.
- W4200250132 cites W2888636705 @default.
- W4200250132 cites W2888823606 @default.
- W4200250132 cites W2918669605 @default.
- W4200250132 cites W2919059388 @default.
- W4200250132 cites W2971370417 @default.
- W4200250132 cites W3084081958 @default.
- W4200250132 cites W3084351169 @default.
- W4200250132 cites W3113080165 @default.
- W4200250132 cites W3118821883 @default.
- W4200250132 cites W3119439915 @default.
- W4200250132 cites W3176088832 @default.
- W4200250132 cites W3205139269 @default.
- W4200250132 cites W3209122777 @default.
- W4200250132 cites W3212207772 @default.
- W4200250132 doi "https://doi.org/10.1016/j.chemosphere.2021.133370" @default.
- W4200250132 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34973248" @default.
- W4200250132 hasPublicationYear "2022" @default.
- W4200250132 type Work @default.
- W4200250132 citedByCount "19" @default.
- W4200250132 countsByYear W42002501322022 @default.
- W4200250132 countsByYear W42002501322023 @default.
- W4200250132 crossrefType "journal-article" @default.
- W4200250132 hasAuthorship W4200250132A5002406507 @default.
- W4200250132 hasAuthorship W4200250132A5004952269 @default.
- W4200250132 hasAuthorship W4200250132A5009583954 @default.
- W4200250132 hasAuthorship W4200250132A5025207884 @default.
- W4200250132 hasAuthorship W4200250132A5043437925 @default.
- W4200250132 hasAuthorship W4200250132A5050309497 @default.
- W4200250132 hasAuthorship W4200250132A5061162677 @default.
- W4200250132 hasAuthorship W4200250132A5062430438 @default.
- W4200250132 hasAuthorship W4200250132A5078847967 @default.
- W4200250132 hasConcept C121332964 @default.
- W4200250132 hasConcept C13965031 @default.
- W4200250132 hasConcept C150394285 @default.
- W4200250132 hasConcept C161790260 @default.
- W4200250132 hasConcept C175708663 @default.
- W4200250132 hasConcept C178790620 @default.
- W4200250132 hasConcept C179104552 @default.
- W4200250132 hasConcept C185592680 @default.
- W4200250132 hasConcept C2775896084 @default.
- W4200250132 hasConcept C2776305511 @default.
- W4200250132 hasConcept C2777764464 @default.
- W4200250132 hasConcept C2778002958 @default.